refactor(installer): 更新安装器版本至0.3.6 Beta 5

重构示例包文件结构，合并程序文件并移除补全功能
在app.lua中添加shell和applist模块依赖

data/computercraft/lua/rom/programs/app.lua

@@ -1,5 +1,8 @@
 -- app.lua - Application launcher for LeonOS
 local fs = require("fs")
+local shell = require("shell")
+local applist = require("applist")
+
 local function show_help()
   print("Usage: app <program_name> [arguments]")
   print("Runs an application from the /app directory")